Graphene Oxide Oxidized by NaClO as a Highly Effective Adsorbent for Fast Removal of Dye Rhodamine B

2013 ◽  
Vol 302 ◽  
pp. 223-226
Author(s):  
Jun Yong Chen ◽  
Yan Liu ◽  
Jia Jia Gou ◽  
Yong Mei Hao
Keyword(s):  
Waste Water ◽  
Aqueous Solution ◽  
Graphene Oxide ◽  
Removal Efficiency ◽  
Rhodamine B ◽  
Potential Application ◽  
Adsorption Equilibrium ◽  
Cationic Dye ◽  
Short Time ◽  
Fast Removal

The present paper reports a high effective adsorbent graphene oxide (GO) oxidized by NaClO. Its ability to separate cationic dye rhodamine (RhB) from aqueous solution was investigated. The adsorption of RhB onto GO can reach adsorption equilibrium within a short time, and the adsorbent exhibits excellent removal efficiency, which suggests its potential application value in removing dye from waste water.

Advances in Graphene for Adsorption of Heavy Metals in Wastewater

2012 ◽  
Vol 550-553 ◽  
pp. 2121-2124 ◽  
Author(s):  
Ling Ling Luo ◽  
Xing Xing Gu ◽  
Jun Wu ◽  
Shu Xian Zhong ◽  
Jian Rong Chen
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Aqueous Solution ◽  
Graphene Oxide ◽  
Physical Structure ◽  
High Specific Surface Area ◽  
Functionalized Graphene ◽  
Storage Material ◽  
Energy Storage Material ◽  
Material Composite

Graphene for its unique physical structure, excellent mechanical, electrical and physical properties has been widely applied in nanoelectronics, microelectronics, energy storage material, composite materials and so on. In recent years, many researchers found graphene have outstanding adsorption capacity of contaminants in aqueous solution due to its high specific surface area. This paper summarized the graphene, graphene oxide and functionalized graphene removing various heavy metals in waste water.

Graphene oxide nanocomposite hydrogel based on poly(acrylic acid) grafted onto salep: an adsorbent for the removal of noxious dyes from water

2019 ◽  
Vol 43 (8) ◽  
pp. 3572-3582 ◽  
Author(s):  
Ghasem Rezanejade Bardajee ◽  
Samaneh Sadat Hosseini ◽  
Cedric Vancaeyzeele
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Acrylic Acid ◽  
Cationic Dye ◽  
Nanocomposite Hydrogel ◽  
Poly Acrylic Acid

In this study, a graphene oxide nanocomposite hydrogel (GONH) based on poly(acrylic acid) grafted onto a natural salep polysaccharide was synthesized and investigated as an adsorbent for the removal of cationic dye from aqueous solution.

Adsorptive Removal of Cationic Dye from Aqueous Solution by Graphene Oxide/Cellulose Acetate Composite

2019 ◽  
Vol 19 (8) ◽  
pp. 4535-4542 ◽  
Author(s):  
Haoliang Zang ◽  
Yanhui Li ◽  
Yali Li ◽  
Long Chen ◽  
Qiuju Du ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Cellulose Acetate ◽  
Cationic Dye ◽  
Adsorptive Removal

Adsorption of a cationic dye from aqueous solution using low-cost Moroccan diatomite: adsorption equilibrium, kinetic and thermodynamic studies

2017 ◽  
Vol 75 ◽  
pp. 213-224 ◽  
Author(s):  
Mohamed Hadri ◽  
Zineb Chaouki ◽  
Khalid Draoui ◽  
Mostafa Nawdali ◽  
Abdeslam Barhoun ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Adsorption Equilibrium ◽  
Low Cost ◽  
Cationic Dye ◽  
Thermodynamic Studies ◽  
Kinetic And Thermodynamic Studies

Anodized Titanium with Aqueous Based Electrolyte for Waste Water Treatment

2018 ◽  
Vol 283 ◽  
pp. 65-71
Author(s):  
Natthaphol Chomsaeng ◽  
Bralee Chayasombat ◽  
Inthiraporn Insura ◽  
Kritsana Narkdee ◽  
Chanchana Thanachayanont
Keyword(s):  
Waste Water ◽  
Aqueous Solution ◽  
Water Treatment ◽  
Rhodamine B ◽  
Waste Water Treatment ◽  
Amorphous Structure ◽  
Annealed Sample ◽  
Heat Treated ◽  
Water Media ◽  
Anodized Titanium

Titanium dioxide nanotubes on titanium surface were prepared by electrolytic anodization in aqueous solution at constant voltages at room temperature for 2, 4 and 6 hours. Anodized titanium was heat treated in a furnace at 450 °C for 4 hours to convert amorphous structure to anatase and rutile crystalline structure. A scanning electron microscope was utilized for morphology investigation of the anodized titanium surfaces. For HF containing water media, porous surface on titanium was revealed after anodizing for 2 hours. Nanotubes (NT) were formed in this media at 4 and 6 hours anodizing time, the diameters of the tubes were approximately 70 to 100 nm. For HF/Na2SO4 aqueous solution, fine NTs, approximately 50 nm in diameter, were grown after 2 hours. However, the NTs obtained at anodizing time 4 and 6 hours were the same size, ranging from 100 to 120 nm. Anatase and rutile phases of TiO2 were formed in the anodized samples after annealing at 450 °C for 4 hours. The anodized samples were tested for their abilities to degrade Rhodamine B, to demonstrate their application as a material for waste water treatment. The Rhodamine B was degraded up to 41% in annealed sample anodized by electrolyte contained HF.

Removal of Azo Dyes from Aqueous Solution by Composite HKUST-1/GO

Nano LIFE ◽  
2015 ◽  
Vol 05 (03) ◽  
pp. 1542003 ◽  
Author(s):  
Qiong Yi ◽  
Ling Li ◽  
Lu Fan ◽  
Keke Sun ◽  
Lebao Mao ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Adsorption Isotherm ◽  
Removal Efficiency ◽  
Adsorption Isotherms ◽  
Azo Dyes ◽  
Freundlich Isotherm ◽  
Dyes Removal

The adsorption of three kinds of azo dyes from aqueous solution on HKUST-1/graphene oxide (GO) composite was studied in view of the removal efficiency, adsorption isotherm, and regenerate of the sorbent. HKUST-1/GO was found to be with higher dyes removal efficiency than HKUST-1. All the adsorption isotherms of azo dyes on HKUST-1/GO composite followed Freundlich isotherm. The adsorbed azo dyes on HKUST-1/GO could be eluted by acetone, so HKUST-1/GO can also be used for enrichment of azo dyes as adsorbent.

Bifunctional graphene oxide–cellulose nanofibril aerogel loaded with Fe(iii) for the removal of cationic dye via simultaneous adsorption and Fenton oxidation

RSC Advances ◽  
2016 ◽  
Vol 6 (24) ◽  
pp. 19819-19825 ◽  
Author(s):  
Mohd Shaiful Sajab ◽  
Chin Hua Chia ◽  
Chi Hoong Chan ◽  
Sarani Zakaria ◽  
Hatika Kaco ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Graphene Oxide ◽  
Fenton Oxidation ◽  
Cationic Dye ◽  
Cellulose Nanofibril ◽  
Simultaneous Adsorption ◽  
Highly Porous

A highly porous cellulose nanofibril aerogel loaded with graphene oxide–iron(iii) nanocomposites was produced and used for the treatment of methylene blue in aqueous solution.

scholarly journals Studying Ni(II) Adsorption of Magnetite/Graphene Oxide/Chitosan Nanocomposite

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Luyen T. Tran ◽  
Hoang V. Tran ◽  
Thu D. Le ◽  
Giang L. Bach ◽  
Lam D. Tran
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Adsorption Process ◽  
Adsorption Equilibrium ◽  
Entropy Change ◽  
Enthalpy Change ◽  
Nickel Ion ◽  
Adsorbent Dosage ◽  
Equilibrium Data ◽  
Adsorption Equilibrium Data

In this paper, Fe3O4/graphene oxide/chitosan (FGC) nanocomposite was synthesized using coprecipitation method for application to removal of nickel ion (Ni(II)) from aqueous solution by adsorption process. To determine residue Ni(II) ions concentration in aqueous solution after adsorption process, we have used UV-Vis spectrophotometric method, which is an effective and exact method for Ni(II) monitoring at low level by using dimethylglyoxime (DMG) as a complex reagent with Ni(II), which has a specific adsorption peak at the wavelength of 550 nm on UV-Vis spectra. A number of factors that influence Ni(II) ions adsorption capacity of FGC nanocomposite such as contact time, adsorption temperature, and adsorbent dosage were investigated. Results showed that the adsorption equilibrium is established after 70 minutes with the adsorbent dosage of 0.01 g.mL−1 at 30°C (the room temperature). The thermodynamic and kinetic parameters of this adsorption including free enthalpy change (∆G0), enthalpy change (∆H0), entropy change (∆S0), and reaction order with respect to Ni(II) ions were also determined. The Ni(II) ions adsorption equilibrium data are fitted well to the Langmuir isotherm and the maximum monolayer capacity (qmax) is 12.24 mg.g−1. Moreover, the FGC adsorbent can be recovered by an external magnet; in addition, it can be regenerated. The reusability of FGC was tested and results showed that 83.08% of removal efficiency was obtained after 3 cycles. The synthesized FGC nanocomposite with many advantages is a promising material for removal of heavy metal ions from aqueous solution to clean up the environment.

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